Question

3) Factorised form of x2+7x+12 is​

Answer 1

Answer:

${x}^{2} + 7x + 12$

${x}^{2} + 4x + 3x + 12$

$x(x + 4) + 3(x + 4)$

$(x + 3)(x + 4)$

hope it helps you..!!!

Answer 2

ANSWER :-

$We \: have \: to \: factorize = {x}^{2} + 7x + 12$

For solving these problems we must know that we have to break 7x in two number whose multiplication gives 12 and their sum is 7x.

$Now, \\ \\ = > {x}^{2} + 7x + 12 \\ \\ = > {x}^{2} + 4x + 3x + 12 \\ \\ = > x(x + 4) + 3(x + 4) \\ \\ = > (x + 4)(x + 3)$

Hence, The Factorised form of ${x}^{2} + 7x + 12$ is (x + 4)(x + 3).